M30221 Просмотр технического описания (PDF) - Renesas Electronics

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M30221

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Renesas Electronics 

Pin Description

Mitsubishi microcomputers

M30221 Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Pin Description

Pin name

VCC, VSS

CNVSS

RESET

XIN

XOUT

XCIN

XCOUT

AVCC

AVSS

VREF

P00 to P07

P10 to P17

P20 to P27

P30 to P35

P41, P42,

P46, P47

P50 to P53,

P56, P57

P60 to P63

Signal name I/O

Function

Power supply

input

Supply 2.7 to 5.5 V to the VCC pin. Supply 0 V to the VSS pin.

CNVSS

I Connect it to the VSS pin.

Reset input

I A “L” on this input resets the microcomputer.

Clock input

Clock output

Clock input

Clock output

I These pins are provided for the main clock generating.

circuit.Connect a ceramic resonator or crystal between the XIN

O and the XOUT pins. To use an externally derived clock, input it

to the XIN pin and leave the XOUT open.

I

These pins are provided for the sub clock generating

circuit.Connect a ceramic resonator or crystal between the XCIN

O and the XCOUT pins. To use an externally derived clock, input it

to the XCIN pin and leave the XCOUT open.

Analog power

supply input

This pin is a power supply input for the A-D converter. Connect

it to VCC.

Analog power

supply input

This pin is a power supply input for the A-D converter. Connect

it to VSS.

Reference

voltage input

I/O port P0

I/O port P1

I/O port P2

I/O port P3

I This pin is a reference voltage input for the A-D converter.

I/O This is an 8-bit CMOS I/O port. It has an input/output port

direction register that allows the user to set each pin for input or

output individually. When set for input, the user can specify in

units of four bits via software whether or not they are tied to a

pull-up resistor. Pins in this port also use as LCD segment

output and real time port output.

I/O This is an 8-bit I/O port equivalent to P0. Pins in this port also

function as input pins for the key input interrupt function and real

time port output.

I/O This is an 8-bit I/O port equivalent to P0. Pins in this port also

function as input pins for the key input interrupt function and real

time port output.

I/O This is a 6-bit I/O port equivalent to P0. P30 to P33 also function

as input pins for the key input interrupt function.

I/O port P4

I/O port P5

I/O port P6

I/O This is a 4-bit I/O port equivalent to P0. The P41 pin is shared

with timer A0 input. The P42 pin is shared with timer A1

output. The P46 pin is shared with timer A3 output and INT4.

The P47 pin is shared with timer A3 input and INT4.

I/O This is a 6-bit I/O port equivalent to P0. The P50, P51, P52, and

P53 pins are shared with timerB0, B1, B2, and B3 input,

respectively. The P56 pin is shared with INT3. The P57 pin is

shared with CKOUT output.

I/O This is an 4-bit I/O port equivalent to P0. The P60 pin is shared

with CTS0 and RTS0. The P61, P62, and P63 pins are shared

with CLK0, RxD0, and TxD0, respectively.

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